CN103206883A - Finned spiral pipe - Google Patents
Finned spiral pipe Download PDFInfo
- Publication number
- CN103206883A CN103206883A CN2013101419997A CN201310141999A CN103206883A CN 103206883 A CN103206883 A CN 103206883A CN 2013101419997 A CN2013101419997 A CN 2013101419997A CN 201310141999 A CN201310141999 A CN 201310141999A CN 103206883 A CN103206883 A CN 103206883A
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- CN
- China
- Prior art keywords
- helix tube
- fin
- finned
- tube
- spiral pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 description 17
- 238000012546 transfer Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a finned spiral pipe. The finned spiral pipe comprises a spiral pipe with a circular section, wherein a plurality of fins are evenly distributed on the inner wall of the spiral pipe, and the fins have the same spiral structure as that of the lead of the spiral pipe; the sections of the fins are shaped like a fan, and the radius of the section of each fin is equal to that of the circular surface of the inner wall of the section of the spiral pipe.
Description
Affiliated technical field
The present invention relates to a kind of finned novel spiral tube device, especially can improve the fluid nowed forming, strengthen the helix tube of heat exchange efficiency.
Background technology
Helix tube is a kind of typical space curve pipe, because of energy free wxpansion, can effectively eliminate the temperature stress in the course of work, can reduce the welding of tube-to-tube sheet connection again significantly, it is little to leak probability, good reliability, and compact conformation, the heat transfer efficiency height has spontaneous centrifugal force field and secondary stream, can effectively postpone the generation of heat transfer deterioration, thereby extensive use in industries such as power, oil, chemical industry, navigation, space flight and nuclear industry.The large-scale spiral pipe heat transmission equipment in the petrochemical industry for example, separation equipment in the extraction equipment, the rotor water cooling pipeline of large-scale double water innercooling electric generator rotates cooling pipe in the nuclear industry, special-shaped closed cycle Heat Engine Propeller System in navigation, the space technology etc.Helix tube Study on Technology (relating to aspects such as flow pattern research, drooping characteristic research, augmentation of heat transfer research) is one of guardian technique that promotes engineering field development such as power, oil, chemical industry.But, when heat transfer is had relatively high expectations, particularly when having biphase gas and liquid flow in the pipe, manage interior fluidised form complexity, gas-liquid two-phase dielectric distribution inequality, the heat exchange efficiency of this common helix tube often can not satisfy instructions for use.
Summary of the invention
The nowed forming that the present invention will overcome the tube fluid of existing heat-exchanging spiral-coil is unfavorable for the shortcoming of heat exchange efficiency, a kind of finned helix tube is provided, this finned helix tube can make the biphase gas and liquid flow in the helix tube evenly distribute, and the heat exchange efficiency of outer fluid in the riser significantly.
The technical solution adopted for the present invention to solve the technical problems is: finned helix tube comprises it is characterized in that the helix tube of ring cross-section: evenly arrange some fins at the helix tube inwall, fin is the helical structure identical with the helix tube helical pitch; The cross sectional shape of fin is fan-shaped, and its radius is identical with the radius of helix tube cross section inwall disc.
Further, described fin is arranged on the outside of the inwall of helix tube, and the fan-shaped center of circle of fin overlaps with the center of circle of helix tube.
When fluid flows in helix tube, the sector crosssection of fin has blocking action to the fluid that flows along helix, increased the less turbulence of tube fluid, particularly when tube fluid is two-phase fluid, can significantly increase the mass-transfer efficiency of two-phase medium, gas-liquid two-phase is fully mixed, be evenly distributed, thereby improve heat exchange efficiency.In addition, when fluid flowed in helix tube, because action of centrifugal force, fluid flowed to outer side surface from pipeline center by the helix tube interior sidewall surface, thereby makes the helix tube outside pressure be higher than inside pressure.Under differential pressure action, the upper and lower wall along pipe flows back to the inboard to fluid from the outside, and the secondary stream that the main body of this flow direction and pipeline flows perpendicular can destroy fluid boundary layer equally, is conducive to mass transfer and the heat transfer of fluid.And fin is being equivalent to a wedge-shape diversion plate perpendicular to helix tube inner fluid main body flow direction, has strengthened the intensity of this secondary flow, thereby can further strengthen mass transfer and the heat-transfer effect of helix tube inner fluid.
The invention has the beneficial effects as follows, can increase the less turbulence that the helix tube inner fluid flows, change nowed forming, when tube fluid is biphase gas and liquid flow, can strengthen mass transfer effect, improve heat exchange efficiency.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the finned spiral tube structure schematic diagram of the present invention.
Fig. 2 is the fin distribution schematic diagram of finned helix tube.
Fig. 3 is helix tube import and fin structure figure.
Fig. 4 is fin helix tube schematic three dimensional views.
The specific embodiment
1. helix tubes outlet among the figure, 2. helix tube, 3. helix tube import, 4 fins.
Finned helix tube comprises the helix tube 2 of ring cross-section, evenly arranges some fins 4 at helix tube 2 inwalls, and for making things convenient for processing and manufacturing, fin 4 is helical structures identical with helix tube 2 helical pitches; The cross sectional shape of fin 4 is fan-shaped, and its radius is identical with the radius of helix tube 2 cross section inwall discs.Described fin is arranged on the outside of the inwall of helix tube, and the fan-shaped center of circle of fin overlaps with the center of circle of helix tube.
In Fig. 1, this invention is a helix tube that pitch is t=125mm, the number of turns n=2 of helix tube, and helix tube height H=t * n=250mm, the helix of helix tube is circular helix, body diameter D=160mm.The helix tube pipe thickness is 2mm.Be distributed with fin in the helix tube.
In Fig. 2, in each circle of helix tube 4 fins are arranged, helix tube has 2 circles among this embodiment, therefore always has 8 fins.Be in the cylindrical-coordinate system of vertical pivot with the helix tube central axis, the angle between two adjacent fins is 45 °.
In Fig. 3, the cross section of helix tube is annulus, and the circle ring inner wall diameter is d
i=26, outer diameter is d
o=30.Fin is a sector crosssection spiral entity that pitch is identical with helix tube, its height H=4mm.The radius of this sector crosssection is identical with helix tube inner wall section radius of a circle.The circular arc of fin sector crosssection is positioned on the inner tubal wall in the helix tube outside.
In Fig. 4, the three-dimensional model diagram of fin helix tube and pipe inner fin distributes in order to observe the helix tube inner fin intuitively, tube wall is done transparence handle.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (2)
1. finned helix tube comprises the helix tube of ring cross-section, and it is characterized in that: evenly arrange some fins at the helix tube inwall, fin is the helical structure identical with the helix tube helical pitch; The cross sectional shape of fin is fan-shaped, and its radius is identical with the radius of helix tube cross section inwall disc.
2. further, described finned helix tube is characterized in that: described fin is arranged on the outside of the inwall of helix tube, and the fan-shaped center of circle of fin overlaps with the center of circle of helix tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141999.7A CN103206883B (en) | 2013-04-22 | 2013-04-22 | Finned helix tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310141999.7A CN103206883B (en) | 2013-04-22 | 2013-04-22 | Finned helix tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103206883A true CN103206883A (en) | 2013-07-17 |
| CN103206883B CN103206883B (en) | 2015-10-28 |
Family
ID=48754186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310141999.7A Active CN103206883B (en) | 2013-04-22 | 2013-04-22 | Finned helix tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103206883B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366029A (en) * | 2015-12-14 | 2016-03-02 | 北京航空航天大学 | Hypersonic aerocraft active cooling structure and gas-liquid two-phase flow centrifugal screw enhanced heat transfer method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932009A2 (en) * | 1998-01-22 | 1999-07-28 | Robert Bosch Gmbh | Heat exchanger for fuel-heated water heater, more particularly for condensing boiler |
| US20040069465A1 (en) * | 2002-08-10 | 2004-04-15 | Winiamando Inc. | Spiral heat exchange device |
| CN2745021Y (en) * | 2004-12-07 | 2005-12-07 | 南京大学 | Reinforced heat transfer tube with discontinuous staggered arrangement inner ribs |
| CN101408390A (en) * | 2007-10-12 | 2009-04-15 | 江西耐乐铜业有限公司 | High-efficiency tube |
| CN202339037U (en) * | 2011-11-14 | 2012-07-18 | 张小方 | Novel heat transfer flow channel |
| CN203323606U (en) * | 2013-04-22 | 2013-12-04 | 浙江工业大学 | Fin type spiral pipe |
-
2013
- 2013-04-22 CN CN201310141999.7A patent/CN103206883B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0932009A2 (en) * | 1998-01-22 | 1999-07-28 | Robert Bosch Gmbh | Heat exchanger for fuel-heated water heater, more particularly for condensing boiler |
| US20040069465A1 (en) * | 2002-08-10 | 2004-04-15 | Winiamando Inc. | Spiral heat exchange device |
| CN2745021Y (en) * | 2004-12-07 | 2005-12-07 | 南京大学 | Reinforced heat transfer tube with discontinuous staggered arrangement inner ribs |
| CN101408390A (en) * | 2007-10-12 | 2009-04-15 | 江西耐乐铜业有限公司 | High-efficiency tube |
| CN202339037U (en) * | 2011-11-14 | 2012-07-18 | 张小方 | Novel heat transfer flow channel |
| CN203323606U (en) * | 2013-04-22 | 2013-12-04 | 浙江工业大学 | Fin type spiral pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366029A (en) * | 2015-12-14 | 2016-03-02 | 北京航空航天大学 | Hypersonic aerocraft active cooling structure and gas-liquid two-phase flow centrifugal screw enhanced heat transfer method |
| CN105366029B (en) * | 2015-12-14 | 2017-08-04 | 北京航空航天大学 | Hypersonic aircraft active cooling structure and biphase gas and liquid flow centrifugal spiral strengthened heat exchange method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103206883B (en) | 2015-10-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200731 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 18 Patentee before: ZHEJIANG University OF TECHNOLOGY Effective date of registration: 20200731 Address after: 214000 Jiangsu province Binhu District of Wuxi city streets Xuelang nanhuzhong Road Patentee after: Wuxi Delida heat exchanger manufacturing Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220519 Address after: 202-1-5320, feifeng Road, Hongshan street, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Suhui Information Technology Service Co.,Ltd. Address before: 214000 Nanhu Middle Road, Xuelang street, Binhu District, Wuxi City, Jiangsu Province Patentee before: Wuxi Delida heat exchanger manufacturing Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240118 Address after: 214000 No.1 Yuyao Road, Qianzhou supporting area, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: WUXI FU'AN POWER BODY EQUIPMENT CO.,LTD. Address before: 202-1-5320, feifeng Road, Hongshan street, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee before: Wuxi Suhui Information Technology Service Co.,Ltd. |